My uploaded image hovers right underneath the top of the page. I was wondering if there was a way to add some padding somewhere to make it centered in the header, and align more evenly with the social media icons. Is it possible to make this padding only apply to the top of the image rather than the bottom as well? I don’t want it to push down the main menu.

You don’t want to use margin here, I would style it like this, if you were talking about your logo. Currently the number is 0 and i changed it to -10px. Please add it to Quick CSS located in the backend Choices > Theme Options > Styling , at the bottom of the page.